then we help create a personalized healthcare experience that works for you. and you. and you. with 50 years of know-how, and a dedicated network of doctors, health coaches, and wellness experts, we're a partner you can rely on -- today, and tomorrow. we're going beyond insurance to become your partner in health. humana. >>> we're learning new details about the american teacher gunned down in benghazi and whether it might have been a revenge attack for the capture of an al qaeda operative. barbara starr, what are you finding out? >> ronny smith wanted to be in benghazi, one of the most dangerous cities in the world for americans. the question now -- who killed him and why? 33-year-old ronny smith was teaching chemistry at an international school in benghazi, libya. >> snow matter what happens, i'm good. that gives me peace. i'm okay with that. >> reporter: libyan authorities say on this street, foyer assailants in a black jeep opened fire, killing him instantly. in a video of smith and his wife on their way to libya, he speaks openly of his christian faith. >> if there is any s